Valve.



UNITED STATES PATENT FFICEQ HENRY M. WARE, OF LEXINGTON, KENTUCKY.

VALVE.

SPECIFICATION formingpart of Letters Patent N o. 69 5,016, dated March 1 l, 1902.

Application filed August 15, 1901. Serial No. 72,104. (No model.)

To al?. whom it may concern:

Beit known that I, HENRY M. WARE, a citizen of the United States, residing at Lexington, inthe county of Fayette and State of Kentucky, have invented new and useful Improvements in Valves, of which the following is a specification. Y

My invention relates to valves for use in connection with receptacles containing iiuid under pressure, such as water, steam, air, dac.; and the object is the production of a valve which shall possess certain improved features of construction whereby a threaded l nut-section thereof can be disconnected when it becomes necessary to regrind the valve proper orto remove any foreign substance which prevents the seating of the same and without removing the entire valve. l

- The invention consists in certain novelties of construction and combinations of parts hereinafter set forth and claimed.

Figure l is an exterior view of the entire valve. Fig. 2 is a longitudinal section showing the valve rod or stern in elevation. Fig. A3 is a section on line l l of Fig. l. Fig. i is a section on line 2 2 of Fig. l.

v Referring to the several views, the letter A designates the outer valve-seat section,hav ing a tapering and threaded end. B is the opposite end of the section, reduced in diameter and threaded to form ahub; C, a cen-V tral passage or bore; D, the inner valve-seat section bored out and threaded internally to fit over the hub B of the outer section; E, a beveled valve-seat; F, a beveled valve-Seat on the interior of the inner section; Gr, an eXternally-threaded hub; H, packing of any suitable material; I, a gland with a flange;-

5, the packing-nut; K, the internally-threaded end of nut J, which iits the hub G of the inner section; L, a surface which bears against the flange of the gland; M, an externally-threaded hub; N, the threaded nut; O, an internally-threaded bore fitting over hub M, as shown; P, an internally-threaded passage of the nut; Q, the Athreaded valve rod or stem; R, a hand-wheel; S, the sinooth'portion of the rod which is engaged bythe packing; T,a portion of the rod which is diminished in diameter, so as to form an open space between it and the inner surface of the passage through the section D, as shown; V, the double and oppositely-disposed conical or beveled surfaces of the end or head of the `rod, which is enlarged and has free reciprocating motion in the space between the valveseats, and W is an escape opening or pipe.

The operation is as follows: By rotating the hand-Wheel to the right or left as the screwthreaded port-ionV of the rod engages the threaded bore of the nut N the rod will be forced inwardly or outwardly and cause the conical surfaces V to frietionally engage the seat E or F. lVhen the conical surfaces are midway of the seats, fluidnnder pressure can escape by way of the pipe `W.

As is well known to those familiar with this class of devices, it frequently happens that the valve-seats or con-ical surfaces become worn or clogged withV dirt, so that the liuid under pressure will escape.

move the entire valve and regrind the sur-` faces. This necessity is obviated by my invention, inasmuch .as the threaded-nut section N can be nnscrewed from the hub M and run n p the threaded part .of the rod, and

when so detached the rod can be revolved It has usually 'been the custom when leakage occurs to re- YVhat I claim as new, and desire to secure Y l. A valve or cock comprising a valve-seat section having a valve-seat, an inner section, a packing-nut, a packing-athreadedinut N having an internally threaded passage, a threaded valve rod or stem, and an escape opening or pipe in the inner section; the said stem being provided at its end with a conical surface to engage the valve-seat.

2. A valvey or cock comprising a threaded end section, an inner section having a valve seat, a packing-nut, a packing, a threaded nut having an internally-threaded passage, a threaded rod or` stem, and an escape opening IOO or pipe; the said stem being providedat its end with a beveled surface to engage 'the valve-seat.

3. A valve or cock embracing a section having a valve-seat, a packing-nut, a packing adapted to be compressed by the packingnut, a threaded nut N which is internally threaded and adapted to be detached from the packing-nut, a threaded valve-stem provided with a beveled surface to fit the valveseat, and an escape opening or pipe in the inner section.

4. A valve or cock having a valve-seat, a threaded stem or rod provided with a surface to t the seat, a section D, a packing, a packing-nut J, and a threaded nut N engaging the threaded stem and detachably secured to the packing-nut, said packing being located between the packing-nut and the section D, as set forth. ,l I

5. A valve or cock consisting of threaded sections A, D, J, and N detachably secured together end to end, and one of said sections having a valve-seat; a threaded valve-stem Q provided with a bearing to fit the seat in one of the sections, the threaded nut N being adjustable on the said stem; an escape-pipe; and a packing located between the nut N and the valve-seat and surrounding the smooth portion of the rod.

6. A valve or cock having a valve-seat, a

Vsection A, a section D, a section J, a threaded valve-stem provided with a bearing-surface for engaging the seat, an internally-screwthreaded nut which can be detached from another section of the valve and run upwardly upon the valve-stem, and a stationary packing and packing-gland I located between the valve-seat and the threaded nut.

7. A valve or cock having a section A, a section D detachably secured to section A, a section J secured to section D, a valve-seat, a threaded valve-stem, a packing H and packing-gland located above the valve-seat and surrounding the valve-stem, and a detachable threaded nut N which can be run up on the stem and revolved with the same, said sections and nut being arranged in line, and said valve-stem having a bearing at t'he end engaging the seat; whereby the valve can be ground to its seat without the removal of the same from the receptacle containing iiuid under pressure.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY M. VARE.

Witnesses:

PAUL W. SCOTT, H. T. LovETT. 

